bfe-core1106-sdk/kernel/rv1106-enablement/dts/rv1106-warden.dts

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * WardenOS 86-Panel board DT for the self-built Linux 6.18 forward-port.
 *
 * Includes the full vendor rv1106.dtsi (SoC nodes + pinctrl + gpio + dmac), then
 * enables only what our wall-HMI needs — no camera/ISP/CSI. Grows one driver
 * batch at a time toward full parity with the 5.10 kernel (DRIVER-PARITY.md).
 */
/dts-v1/;

#include "rv1106.dtsi"

/ {
	model = "WardenOS 86-Panel (RV1106)";
	compatible = "rockchip,rv1106-warden", "rockchip,rv1106";

	chosen {
		stdout-path = "serial2:115200n8";
		bootargs = "earlycon=uart8250,mmio32,0xff4c0000 console=ttyS2,115200n8 earlyprintk rootwait";
	};

	memory@0 {
		device_type = "memory";
		reg = <0x00000000 0x10000000>; /* 256 MiB */
	};

	/* --- M5: AIC8800DC wifi/BT power sequencing --- */
	sdio_pwrseq: sdio-pwrseq {
		compatible = "mmc-pwrseq-simple";
		pinctrl-names = "default";
		reset-gpios = <&gpio1 RK_PA2 GPIO_ACTIVE_LOW>;
	};

	/* SARADC voltage reference (1.8V) — the driver reads this for scale;
	   without it saradc probes -22 (regulator_get_voltage on the dummy). */
	vcc_1v8: vcc-1v8 {
		compatible = "regulator-fixed";
		regulator-name = "vcc_1v8";
		regulator-always-on;
		regulator-boot-on;
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
	};
};

/* --- console --- */
&uart2 {
	status = "okay";
};

/* --- eMMC rootfs (M3) --- */
&emmc {
	bus-width = <8>;
	cap-mmc-highspeed;
	mmc-hs200-1_8v;
	non-removable;
	status = "okay";
};

/* --- M5: AIC8800DC wifi/BT SDIO (on &sdmmc, mmc@ffaa0000 — NOT &sdio) --- */
&sdmmc {
	max-frequency = <50000000>;
	bus-width = <4>;
	cap-sd-highspeed;
	cap-sdio-irq;
	keep-power-in-suspend;
	non-removable;
	rockchip,default-sample-phase = <90>;
	supports-sdio;
	mmc-pwrseq = <&sdio_pwrseq>;
	pinctrl-names = "default";
	pinctrl-0 = <&sdmmc0_clk &sdmmc0_cmd &sdmmc0_bus4 &sdmmc0_det>;
	status = "okay";
};

/* --- batch 1: mainline peripherals (wire DT + config) --- */
&uart1 {
	status = "okay";
};

&uart4 {
	status = "okay";
};

&i2c3 {
	status = "okay";
};

&saradc {
	vref-supply = <&vcc_1v8>;
	status = "okay";
};

&wdt {
	status = "okay";
};

/* --- M4: display (VOP + RGB → 720x720 panel + PWM backlight) --- */
&display_subsystem {
	status = "okay";
};

&vop {
	status = "okay";
	/* mainline rockchip_drm_vop requests named "ahb" + "dclk" resets that the
	 * vendor node omits; without them vop_bind fails "failed to get ahb reset". */
	resets = <&cru SRST_H_VOP>, <&cru SRST_D_VOP>;
	reset-names = "ahb", "dclk";
};

/* mainline wires vop_out straight to the panel (no separate rgb node) */
&vop_out_rgb {
	remote-endpoint = <&panel_in_vop>;
};

&pwm1 {
	status = "okay";
	pinctrl-names = "active";
	pinctrl-0 = <&pwm1m2_pins>;
};

/ {
	backlight: backlight {
		compatible = "pwm-backlight";
		pwms = <&pwm1 0 100000 50000>;
		brightness-levels = <0 32 64 96 128 160 192 224 255>;
		default-brightness-level = <8>;
		status = "okay";
	};

	panel: panel {
		compatible = "panel-dpi";
		backlight = <&backlight>;
		width-mm = <85>;
		height-mm = <85>;

		panel-timing {
			clock-frequency = <30000000>;
			hactive = <720>;
			vactive = <720>;
			hback-porch = <44>;
			hfront-porch = <46>;
			vback-porch = <18>;
			vfront-porch = <16>;
			hsync-len = <2>;
			vsync-len = <2>;
			hsync-active = <0>;
			vsync-active = <0>;
			de-active = <0>;
			pixelclk-active = <0>;
		};

		port {
			panel_in_vop: endpoint {
				remote-endpoint = <&vop_out_rgb>;
			};
		};
	};
};

/* the vendor rgb bridge node has no 6.18 driver and its dangling endpoint
 * corrupts the vop->panel of_graph; disable it so the graph is clean. */
&rgb {
	status = "disabled";
};

/* --- sweep: USB OTG (eth0 gadget / host) via the ported inno-usb2 phy --- */
&u2phy {
	status = "okay";
};

&u2phy_otg {
	status = "okay";
};

&usbdrd {
	status = "okay";
};

&usbdrd_dwc3 {
	status = "okay";
	dr_mode = "otg";
};

/* --- sweep: RTC + thermal (tsadc) + I2S audio DAI --- */
&rtc {
	status = "okay";
};

&tsadc {
	status = "okay";
};

&i2s0_8ch {
	status = "okay";
};


&rga2 {
	status = "okay";
};

/* --- batch A: hardware RNG (trngv1, same IP as rk3588) --- */
&rng {
	compatible = "rockchip,rv1106-rng";
	status = "okay";
};

/* --- batch A: OTP / nvmem (chip id, MAC, PHY bandgap for GMAC) --- */
&otp {
	status = "okay";
};

/* --- GMAC: wired 10/100 ethernet via the on-die RMII FEPHY --- */
&gmac {
	status = "okay";
};